a position

ElementAt (Method) GetElementPosition [...] ElementAt (Method) GetElementPosition

LogDeviceObjectProperty GetRecordsByPosition

or the slot-position of a

MovingDirection CarPosition [...] MovingDirection (Property) CarPosition

OctetStringValue (FunctionBlock) BACnetPositive

on valve position

Tokenizer (FunctionBlock) CurrentPosition

BufferSize (Method) GetRecordsByPosition

LogDeviceObjectProperty GetRecordsByPosition